The women were dressed like character’s from Margaret Atwood’s dystopian novel “The Handmaid’s Tale,” which depicts a world where women have been stripped of their rights. In the book, some of the women, called “handmaids,” are forced to bear children against their will. This includes the book’s protagonist, Offred. According to NPR, sales of the book, first published in 1985, have soared since President Donald Trump took office.

Pictures of the protesters were posted on Twitter along with the hashtag #FightBackTX.

The women were present when the Texas Senate gave final approval Monday to a bill that would “ban a commonly used second-trimester abortion procedure,” known as dilation and evacuation, according to the Associated Press. State troopers and Senate officials reportedly pulled down signs the women were holding and escorted them out.

Women in similar garb were spotted roaming the streets of downtown Austin during last week’s SXSW conference as promotion for Hulu’s new show based on the novel.